A Compact Three-Port DC-DC Converter for Integrated PV-Battery System

Al-Soeidat, Mohammad; Khawaldeh, Habes Ali; Aljarajreh, Hamzeh; Lu, Dylan Dah-Chuan

doi:10.1109/peac.2018.8590624

Cited by 11 publications

(6 citation statements)

References 14 publications

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“…3) is designed to control level of voltage at the DC link capacitor V DC . The error resulting between the DC bus voltage and the reference voltage is defined by the state variable x 1 Dash and Ray 2018;Al-Soeidat et al 2018):…”

Section: The DC Bus Controllermentioning

confidence: 99%

Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

Qashou

Yousef

Smadi

et al. 2021

Int J Syst Assur Eng Manag

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The purpose of this paper is to describe the design of a Hybrid Series Active Power Filter (HSeAPF) system to improve the quality of power on three-phase power distribution grids. The system controls are comprise of Pulse Width Modulation (PWM) based on the Synchronous Reference Frame (SRF) theory, and supported by Phase Locked Loop (PLL) for generating the switching pulses to control a Voltage Source Converter (VSC). The DC link voltage is controlled by Non-Linear Sliding Mode Control (SMC) for faster response and to ensure that it is maintained at a constant value. When this voltage is compared with Proportional Integral (PI), then the improvements made can be shown. The function of HSeAPF control is to eliminate voltage fluctuations, voltage swell/sag, and prevent voltage/current harmonics are produced by both non-linear loads and small inverters connected to the distribution network. A digital Phase Locked Loop that generates frequencies and an oscillating phase-locked output signal controls the voltage. The results from the simulation indicate that the HSeAPF can effectively suppress the dynamic and harmonic reactive power compensation system. Also, the distribution network has a low Total Harmonic Distortion (< 5%), demonstrating that the designed system is efficient, which is an essential requirement when it comes to the IEEE-519 and IEC 61,000–3-6 standards.

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Section: The DC Bus Controllermentioning

confidence: 99%

Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

Qashou

Yousef

Smadi

et al. 2021

Int J Syst Assur Eng Manag

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show abstract

“…Several three‐port dc‐dc converters (TPC) have been reported in the literature to integrate the RES and battery with LVDDS. Non‐isolated TPCs are cost‐effective for low voltage applications because of their compact size and the low number of components counts 15–27 . However, non‐isolated TPCs have restricted power flow options due to the sharing of the components under different modes of operation.…”

Section: Introductionmentioning

confidence: 99%

“…Power flow restrictions can be overcome by using more switches which increases the complexity of the control. Also, most of the topologies reviewed and proposed are focused on loads that do not have the current reversibility feature 15–20,27 . Thus, loads with current reversibility or bidirectional features such as battery and LVDDS grid cannot be integrated using such TPCs.…”

Section: Introductionmentioning

confidence: 99%

A battery integrated three‐port bidirectional charger/discharger for light electric vehicles with G2V and V2G power flow capability

Kumar

Saxena

2021

Circuit Theory & Apps

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Summary In this paper, a non‐isolated battery integrated three‐port bidirectional dc‐dc converter (BIBTPC) is proposed and analyzed for interfacing light electric vehicles (LEVs) with solar photovoltaic (SPV)‐fed low voltage dc distribution system (LVDDS). Depending upon the power generation, the converter can be controlled to operate in grid‐to‐vehicle (G2V) or vehicle‐to‐grid (V2G) arrangement. BIBTPC can implement maximum power point tracking (MPPT), simultaneously regulating the dc bus voltage of LVDDS. It also has an inherent feature of pulse charging and pulse discharging of the battery which improves its charging/discharging rate. The converter operation in all the possible modes is elucidated, and steady‐state analysis is performed to establish the key performance features. The guidelines for the inductor and capacitor design of the converter are also presented. The control strategy to ensure MPPT simultaneously managing the power flow among SPV, LVDDS, and LEV battery is developed and implemented. The theoretical predictions are validated experimentally on the laboratory prototype of the converter. These results are found to be in close agreement with each other.

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“…Various three-port converter topologies have already been presented and analyzed in the literature [5][6][7][8], which show remarkable efficiencies under suitable operating conditions [9]. Unfortunately, due to the required galvanic isolation between the AC mains and the two DC voltage buses, promising non-isolated topologies cannot be used in the application at hand [10,11], which is why only topologies remain that use a transformer for isolation purposes. However, these isolated topologies feature a common characteristic: they are often built symmetrically, which means that every converter port shows the same circuit structure [12].…”

Section: Introductionmentioning

confidence: 99%

Three-Port Series-Resonant DC/DC Converter for Automotive Charging Applications

Schäfer

Kolar

2021

Electronics

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In the energy distribution grid of electric vehicles (EVs), multiple different voltage potentials need to be interconnected, to allow arbitrary power flow between the various energy sources and the different electrical loads. However, between the different potentials, galvanic isolation is absolutely necessary, either due to safety reasons and/or due to different grounding schemes. This paper presents an isolated three-port DC/DC converter topology, which, in combination with an upstream PFC rectifier, can be used as combined EV charger for interconnecting the single-phase AC mains, the high-voltage (HV) battery and the low-voltage (LV) bus in EVs. The proposed topology comprises two synergetically controlled and magnetically coupled converter parts, namely, a series-resonant converter between the PFC-sided DC-link capacitor and the HV battery, as well as a phase-shifted full-bridge circuit equivalent in the LV port, and is mainly characterized by simplicity in terms of control and circuit complexity. For this converter, a simple soft switching modulation scheme is proposed and comprehensively analyzed, in consideration of all parasitic components of a real converter implementation. Based on this analysis, the design of a 3.6kW, 500V/ 500V/ 15V prototype is discussed, striving for the highest possible power density and as low as possible manufacturing costs, by using PCB-integrated windings for all magnetic components. The hardware demonstrator achieves a measured full-load efficiency in charge mode of 96.5% for nominal operating conditions and a power density of 16.4kW/L.

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A Compact Three-Port DC-DC Converter for Integrated PV-Battery System

Cited by 11 publications

References 14 publications

Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

Distribution system power quality compensation using a HSeAPF based on SRF and SMC features

A battery integrated three‐port bidirectional charger/discharger for light electric vehicles with G2V and V2G power flow capability

Three-Port Series-Resonant DC/DC Converter for Automotive Charging Applications

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